I hope you are fine. I have some doubts about the restart file and the boundary conditions that I would like to ask you about it.
I am nesting my regional model of 1/36 resolution in a 1/12 global model. Both models have the same vertical structure (number of layers), however their bathymetries are different. I did the merge bathymetry considering 19 points, since my grid is IDM(741)xJDM(920), following from 1.0 (19) to 0.1 (1). Is this merge bathymetry enough to deal with the problem of bathymetry difference in the buffer zone? I am asking that because what I have seen is that when the bathymetry of the regional model is deeper than the bathymetry of the global model, it gives a negative dp.
Besides that, when creating a restart file using an archv from the global model it carries the bathymetry of this model and not the bathymetry of my model that goes for example in the layers structure of the climatological restart used as the model input restart file. Shouldn't it follows the bathymetry that I gave when creating the restart file? Because it will give negative dp already in the first step.
I am confused about nesting models with different bathymetry because it seens that it will always follow the original bathymtry of the global model despite informing the bathymetry of my model.
I appreciate so much your help.